three_sign

分步傅立叶法计算高斯光脉冲在 光纤中的传播 考虑二阶色散(Split-step fast foruier method)

Matlab code for the simulation of HF channel with Rayleigh fading

心电信号加入0.5Hz的基线漂移，通过0.5Hz高通滤波器，滤波后的波形与原波形的对比 ，滤波器特性曲线分析；信号加入50Hz工频漂移，通过50Hz陷波器，滤波后的波形与原波形的对比 ，滤波器特性曲线分析(ECG baseline drift by adding 0.5Hz, 0.5Hz through a high-pass filter, filtering of the waveform after the comparison with the original waveform, filter characteristic curve analysis adding 50Hz frequency signal drift, through the 50Hz notch filter, after filtering waveform compared with the original waveform, filter characteristic curve analysis)

LPC Linear prediction coefficients

The most widely used transform for image fusion at multi scale is Wavelet Transform since it minimizes structural distortions. But, wavelet transform suffers lack of shift invariance & poor directionality. These disadvantages are overcome by using our proposed method that is Un-decimated Discrete Wavelet Transform.

维纳滤波器的matlab实现外加实验报告，有程序(Wiener filter matlab plus the realization of the experimental reports, there are procedures)

这个matlab程序可以同时对图像做高斯滤波和中值滤波处理。(The matlab program can do Gaussian image filtering and median filtering.)

提取原始信号的功率谱就可以看出在哪个频带的能量比较高，噪声主要集中在哪里，这样就可以专门分析那个频带的噪声(The power extracted the spectrum of the original signal can be seen in which frequency band energy is high, the noise is mainly concentrated in where, so that it can be devoted to the analysis of the frequency band of noise)

matab basic need for programming , math symbols documents

运用MATLAB程序识别图像并将其划分为文字和非文字的两个类别(MATLAB program to identify the use of images and text and is divided into two categories of non-text)